From 46f55cffa47330b99537985a50d92945d4b34658 Mon Sep 17 00:00:00 2001 From: John Fastabend Date: Mon, 17 Jul 2017 21:56:48 -0700 Subject: [PATCH] net: fix build error in devmap helper calls Initial patches missed case with CONFIG_BPF_SYSCALL not set. Fixes: 11393cc9b9be ("xdp: Add batching support to redirect map") Fixes: 97f91a7cf04f ("bpf: add bpf_redirect_map helper routine") Signed-off-by: John Fastabend Signed-off-by: David S. Miller --- include/linux/bpf.h | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 6850a76..6353c74 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -318,6 +318,12 @@ static inline void bpf_long_memcpy(void *dst, const void *src, u32 size) /* verify correctness of eBPF program */ int bpf_check(struct bpf_prog **fp, union bpf_attr *attr); + +/* Map specifics */ +struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key); +void __dev_map_insert_ctx(struct bpf_map *map, u32 index); +void __dev_map_flush(struct bpf_map *map); + #else static inline struct bpf_prog *bpf_prog_get(u32 ufd) { @@ -356,6 +362,20 @@ static inline int __bpf_prog_charge(struct user_struct *user, u32 pages) static inline void __bpf_prog_uncharge(struct user_struct *user, u32 pages) { } + +static inline struct net_device *__dev_map_lookup_elem(struct bpf_map *map, + u32 key) +{ + return NULL; +} + +static inline void __dev_map_insert_ctx(struct bpf_map *map, u32 index) +{ +} + +static inline void __dev_map_flush(struct bpf_map *map) +{ +} #endif /* CONFIG_BPF_SYSCALL */ /* verifier prototypes for helper functions called from eBPF programs */ @@ -379,9 +399,4 @@ extern const struct bpf_func_proto bpf_get_stackid_proto; void bpf_user_rnd_init_once(void); u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5); -/* Map specifics */ -struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key); -void __dev_map_insert_ctx(struct bpf_map *map, u32 index); -void __dev_map_flush(struct bpf_map *map); - #endif /* _LINUX_BPF_H */ -- 2.7.4